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>Can anyone venture a guess on why a remote antenna for a GPS unit
>costs $300 to $400??? 
   Sure, if it's an ACTIVE antenna . . . amplifier built into
   the base and powered either by special coupler that
   carries power up the coax -or- separate leads to the
   power bus.
   Passive antennas are much less expensive and can even
   be constructed by the amateur builder. A gentleman gave
   a forum at OSH last year on this topic. I'm trying
   to track down the information and make it downloadable
   from our website.
      Regards,
      Bob . . .
      AeroElectric Connection
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